{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "7d52f5ad",
   "metadata": {},
   "source": [
    "* 日期：2022-11-02 \\week11\n",
    "* 课程：python\n",
    "* 记录人：佩佩\n",
    "\n",
    "---------------------------------------------"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "ce684c23",
   "metadata": {},
   "source": [
    "> 1.元组         \n",
    "> 2.集合             \n",
    "> 3.字典           "
   ]
  },
  {
   "cell_type": "markdown",
   "id": "b6071618",
   "metadata": {},
   "source": [
    "## 1. 元组（tuple）\n",
    "> 1.元组的概念和基本形态          \n",
    "> 2. 元组的方法"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "b4db7c11",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(1800001, 1800002, 1800003) <class 'tuple'>\n"
     ]
    }
   ],
   "source": [
    "user_info = 1800001,1800002,1800003\n",
    "print(user_info,type(user_info))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "8a7096f0",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[1800001, 1800002, 1800003] <class 'list'>\n"
     ]
    }
   ],
   "source": [
    "user_info_list = [1800001,1800002,1800003]\n",
    "print(user_info_list,type(user_info_list))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "ab0685a6",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "1800001\n",
      "(1800001, 1800002)\n"
     ]
    }
   ],
   "source": [
    "# 取值\n",
    "print(user_info[0])\n",
    "# 切片\n",
    "print(user_info[:2])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "2d55c0c8",
   "metadata": {},
   "outputs": [],
   "source": [
    "import time"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "b5d36d48",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "time.struct_time(tm_year=2022, tm_mon=11, tm_mday=2, tm_hour=19, tm_min=11, tm_sec=44, tm_wday=2, tm_yday=306, tm_isdst=0)"
      ]
     },
     "execution_count": 6,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "time.localtime()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "f56542d2",
   "metadata": {},
   "outputs": [],
   "source": [
    "# help(time.localtime())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "62318dd7",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "1667387572.1725924"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "time.time()    # 时间戳，可以记录互联网当中所有数据信息产生、销毁、创建一系列行为"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "id": "5f0282db",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "1"
      ]
     },
     "execution_count": 13,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "user_info.count(1800001)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "id": "37ff44aa",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "0"
      ]
     },
     "execution_count": 14,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "user_info.index(1800001)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "ef049842",
   "metadata": {},
   "source": [
    "## 2.集合\n",
    "\n",
    "> 1. 集合的概念和性质   \n",
    ">> 1. 集合的唯一性     \n",
    ">> 2. 集合的无序性   \n",
    "> 2. 集合的方法      \n",
    ">> 1. 交集：逻辑运算符：      setA & setB  ，setA.intersection(B) =》应用：推荐系统     \n",
    ">> 2. 并集: 逻辑运算符：      setA | setB  ,setA.union(B)=>应用：快速统计两个集合元素的个数  \n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "37dff52c",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'apple', 'orange', 'banana', 'pear'} <class 'set'>\n"
     ]
    }
   ],
   "source": [
    "basket = {'apple', 'orange', 'apple', 'pear', 'orange', 'banana'} # 唯一性\n",
    "print(basket,type(basket))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "id": "cfb5fc13",
   "metadata": {},
   "outputs": [],
   "source": [
    "舞蹈社_user_id = {18000001,18000002,18000003,18000004}\n",
    "合唱团_user_id = {18000001,182,183,18000004,185}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "id": "2318a99d",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{18000001, 18000004}"
      ]
     },
     "execution_count": 18,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社_user_id & 合唱团_user_id"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "id": "489c02b6",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{18000001, 18000004}"
      ]
     },
     "execution_count": 20,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社_user_id.intersection(合唱团_user_id)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "50fb215d",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "9"
      ]
     },
     "execution_count": 21,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "len(舞蹈社_user_id) + len(合唱团_user_id)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "id": "84009a1a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "7"
      ]
     },
     "execution_count": 23,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "len(舞蹈社_user_id | 合唱团_user_id)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "id": "e8e6f7e5",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{182, 183, 185, 18000001, 18000002, 18000003, 18000004}"
      ]
     },
     "execution_count": 24,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社_user_id.union(合唱团_user_id)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "id": "7faf080d",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 思考：如果是列表的话，想要找出重复的项？  集合的价值\n",
    "舞蹈社_user_id = {18000001,18000002,18000003,18000004}\n",
    "合唱团_user_id = {18000001,182,183,18000004,185}"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "8b08593b",
   "metadata": {},
   "source": [
    "## 3.字典（dict）  \n",
    "\n",
    "> 1. 字典的概念和性质   \n",
    ">>> 1. 无序性      \n",
    ">>> 2. key是唯一的（没有重复）        \n",
    ">>> 3. key是不可变的\n",
    "> 2. 字典的创建      \n",
    ">> 1. 按照字典的形态创建字典\n",
    "```\n",
    "网新1班 = {\n",
    "    1800001:\"李华\",\n",
    "    1800002:\"小明\",\n",
    "    1800003:\"Jack\",\n",
    "    1800004:\"Marry\"\n",
    "}\n",
    ">> 2. 使用dict（）方法创建字典     \n",
    "网新2班 = dict（\n",
    "stu190001:\"小红\",\n",
    "stu190002:\"小李\",\n",
    "stu190003:\"小张\",\n",
    "）\n",
    "```\n",
    "> 3. 字典的方法             "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 50,
   "id": "4a7c2c1f",
   "metadata": {},
   "outputs": [],
   "source": [
    "wechat = {\n",
    "    \"fgyqeu7489fhdjk\":[\"Zhichao\",\"冰岛\",\"朋友圈\",\"男\",\"159\",\"置顶聊天\",\"会话\"],\n",
    "    \"bfdjiwg84239fgd\":[\"Jack\",\"香港\"]\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 51,
   "id": "15568369",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['Zhichao', '冰岛', '朋友圈', '男', '159', '置顶聊天', '会话']"
      ]
     },
     "execution_count": 51,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "wechat[\"fgyqeu7489fhdjk\"]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 31,
   "id": "fcc7bca8",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新1班 = {\n",
    "    1800001:\"李华\",\n",
    "    1800002:\"小明\",\n",
    "    1800003:\"Jack\",\n",
    "    1800004:\"Marry\"\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "id": "e99a3361",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1800001: '李华', 1800002: '小明', 1800003: 'Jack', 1800004: 'Marry'} <class 'dict'>\n"
     ]
    }
   ],
   "source": [
    "print(网新1班,type(网新1班))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 33,
   "id": "8aa04aaa",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'小明'"
      ]
     },
     "execution_count": 33,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新1班[1800002]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 48,
   "id": "2ecb64cc",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新2班 = dict(\n",
    "    stu190001=\"小红\",\n",
    "    stu190002=\"小李\",\n",
    "    stu190003=\"小张\"\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 49,
   "id": "ca04632c",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'小红'"
      ]
     },
     "execution_count": 49,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新2班[\"stu190001\"]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "d7f3ed55",
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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